Oprah attends Surprise Oprah! A Farewell Spectacular at the United Center on May 17, 2011 in Chicago, Illinois. (credit: Daniel Boczarski/Getty Images)
Oprah signed off the final show after 25 years. ABC News talked with Dr. Phil McGraw about Oprah’s life affirming message on her last broadcast. Oprah says people should use their lives to serve the world.